diff options
| author | Subhash Jadavani <subhashj@codeaurora.org> | 2014-10-15 19:11:03 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 10:57:40 -0700 |
| commit | 9f06dddf5beecbcdf36535e0e587c23aaa7785f5 (patch) | |
| tree | fdbf30a7a74bc165761ce8ff400bf349923cf347 /include/linux | |
| parent | 500f7e1f339cc671ae4659575f8fbabc0614a548 (diff) | |
scsi: ufs: add capability to keep auto bkops always enabled
UFS device requires to perform bkops (back ground operations) periodically
but host can control (via auto-bkops parameter of device) when device can
perform bkops based on its performance requirements. In general, host
would like to enable the device's auto-bkops only when it's not doing any
regular data transfer but sometimes device may not behave properly if host
keeps the auto-bkops disabled. This change adds the capability to let the
device auto-bkops always enabled except suspend.
Change-Id: I92c4531f88cb75a563568270584926eb73b53c98
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/scsi/ufs/ufshcd.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/scsi/ufs/ufshcd.h b/include/linux/scsi/ufs/ufshcd.h index c83a58831b25..90b2417f87fb 100644 --- a/include/linux/scsi/ufs/ufshcd.h +++ b/include/linux/scsi/ufs/ufshcd.h @@ -647,6 +647,14 @@ struct ufs_hba { #define UFSHCD_CAP_INTR_AGGR (1 << 4) /* Allow standalone Hibern8 enter on idle */ #define UFSHCD_CAP_HIBERN8_ENTER_ON_IDLE (1 << 5) + /* + * This capability allows the device auto-bkops to be always enabled + * except during suspend (both runtime and suspend). + * Enabling this capability means that device will always be allowed + * to do background operation when it's active but it might degrade + * the performance of ongoing read/write operations. + */ +#define UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND (1 << 5) struct devfreq *devfreq; struct ufs_clk_scaling clk_scaling; @@ -674,6 +682,11 @@ static inline bool ufshcd_is_hibern8_on_idle_allowed(struct ufs_hba *hba) { return hba->caps & UFSHCD_CAP_HIBERN8_ENTER_ON_IDLE; } +static inline bool ufshcd_keep_autobkops_enabled_except_suspend( + struct ufs_hba *hba) +{ + return hba->caps & UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND; +} static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba) { |